Based on my conversations with my wife, who is a lawyer, that plain language can be a little bit deceptive. While lawyers love their jargon and latin phrases, there's also a lot of very specific terms of art that sound like regular language. Terms like "reasonable" carry a lot of connotations and context in a legal decision that you don't get from the word alone. But yeah, I agree that these legal decisions are really easy for a layman to understand, even if I might miss some of the nuances.